Abstract: A centrifuge basket includes a frustum-shaped hollow body defining a pair of opposed ends, being a larger end and a smaller end. The body defines an internal screening surface extending between the ends, the screening surface defining a plurality of apertures arranged to drain liquid from within the body. A plurality of ribs project into an interior of the body from the screening surface, the ribs being arranged in a plurality of annular arrays. The arrays are spaced axially along the screening surface and the ribs of at least one of the arrays are arranged transversely, at a defined included angle, relative to a generatrix line that forms a shape of the screening surface.